Senvion

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Senvion SA

logo
legal form Société anonyme
ISIN LU1377527517
founding 2001
Seat Luxembourg ; LuxembourgLuxembourgLuxembourg 
management Yves Rannou (CEO)
Number of employees 4,000 (September 2017)
sales 1,890 million euros (2017)
Branch Renewable energy
Website www.senvion.com

3.0M122
5M126 in Brunsbüttel , on the left in the background the Brunsbüttel NPP

The Senvion SA , based in Luxembourg (until 2014 REpower Systems ) is a listed wind energy company . The company develops, produces and sells wind turbines with rated outputs from 2.0 to 6.33 megawatts and rotor diameters from 82 to 152 meters. Onshore and offshore systems are manufactured .

On April 9, 2019, the German subsidiary, which holds the main assets, applied for insolvency proceedings in self-administration . At the end of August it was considered unlikely that the company would be saved as a whole by selling it.

history

Logo of the former REpower Systems SE

REpower Systems was created in 2001 under the then CEO Fritz Vahrenholt from the merger of the companies Jacobs Energie , Brandenburgische Wind- und Umwelttechnologien GmbH (BWU) , pro + pro Energiesysteme GmbH & Co. KG (Rendsburg) and Denker & Wulf .

The beginnings as Jacobs Energie

The Jacobs Energie GmbH in 1991 in Heide (Holstein) was founded. In 1994 the company completed its first wind turbine. In 1995 the project planning and operating company Regenerative Energies Denker & Dr. Wulf KG (REKG) founded in Sehestedt . Jacobs Energie and the BWU, founded in 1996, jointly developed a 600 kW system (type 43/600). Another predecessor company was the Husum shipyard , which had been producing wind turbines since the late 1980s. The wind energy division of the Husum shipyard was taken over by Jacobs Energie GmbH after its bankruptcy in 1999 . The HSW 1000 wind turbine was produced by Repower (as Repower 57/1000 ). In March 2002 Repower went public. In 2004, Denker & Wulf separated from Repower.

Takeover in 2007

On January 22, 2007, REpower's largest shareholder at the time, the French nuclear power company Areva , published a takeover offer to acquire at least 50 percent of REpower's shares. On February 9, 2007, the Indian wind energy company Suzlon Energy made a counter offer with the support of the Portuguese Martifer Group . A month-long takeover battle between the two bidders ensued:

date Bidder Price per share Market capitalization source
01/22/2007 Areva 105 euros 850 million euros
02/09/2007 Suzlon 126 euros 1,021 million euros
03/15/2007 Areva 140 euros 1,137 million euros
04/10/2007 Suzlon 150 euros 1,220 million euros

Areva ended the bidding war on May 24, 2007 and announced that they would not make any further offers. They want to continue to support REpower and initially keep their share. Suzlon had previously offered to make Areva its preferred power distribution and transmission provider. Suzlon took over REpower for 1.3 billion euros and at that time had 95.16% of the shares. The remaining 4.84% were in free float .

The plans that became known before the bidding war, including building a production facility in Osterrönfeld , were initially delayed by the bidding war. At times it was considered to move the headquarters to Osterrönfeld. In the meantime, the development (TechCenter) has been located in Osterrönfeld instead of the new production facility. The company's 7777th wind turbine, a 3.2M122, was installed in Mark Landin in November 2017 .

Partial takeover in 2019

As part of the bankruptcy proceedings, Senvion was unable to sell its business as a whole. In October 2019, there was a contractual agreement on the sale of some parts of the business to Siemens Gamesa for a total of 200 million euros:

  • European service business for onshore wind turbines with a volume of 8900 megawatts
  • all intellectual property
  • Onshore rotor blade production Ria Blades SA in Vagos (Portugal)

This will keep around 2000 jobs, 500 of them in Germany.

Ownership

In 2009, the Repower share was eliminated from the TecDAX and ÖkoDAX because it fell below the required free float . In the 2011/2012 financial year, Suzlon held 95.16% of the voting rights in Repower. The minority shareholders were forcibly compensated ( squeeze-out ) in October 2011 , and trading in the shares on the stock exchange ceased. In 2014 REpower Systems changed the name to Senvion , as the license to use the previous name expired. The licensor was the former Rätia Energie AG , which has now renamed itself Repower AG .

For Suzlon, the takeover of Repower turned out to be a loss. In January 2015, the sale to the US fund Centerbridge became known. The successful takeover was announced at the end of April 2015. In June 2015 Centerbridge sold a stake in the Indian investment company Arpwood Capital .

Senvion went public again on March 23, 2016. The Senvion share is traded on the Frankfurt Stock Exchange under the symbol SEN.

structure

Senvion in Germany

Senvion administration building in Osterrönfeld, still during the construction phase, November 2009
Administration building (2019)
PowerBlades GmbH factory premises in Bremerhaven
Rotor blades on the factory premises
Senvion site in Bremerhaven (aerial photo 2012)
Senvion production and service location in Trampe, Brandenburg (2017)

Senvion is active in several locations in Germany. The head office is located at the company's headquarters in Hamburg . The development centers are located in Osnabrück and Osterrönfeld in Schleswig-Holstein . The production and service location is Bremerhaven .

On December 11th, 2007 REpower celebrated the construction of a new factory for offshore wind turbines at Bremerhaven's Lunehafen. One of the special services was a sole that makes the hall floor capable of bearing heavy loads so that it can withstand the weight of the machine houses . In the new factory, rotor blades and Senvion 5M and 6M turbines are produced in series. Bremerhaven is Senvion's offshore manufacturing and logistics center. On October 8, 2007, a new production hall was inaugurated in the Trampe location northeast of Berlin. The company's two existing halls, each 55 meters long, were each extended by 35 meters. Until then, production in Trampe had a capacity of around 150 wind turbines per year; Up to six wind turbines of the 2 MW class could be manufactured in the expanded halls per week, which roughly doubled the annual production capacity.

On July 17, 2007, REpower founded a joint venture with the rotor blade manufacturer Abeking & Rasmussen Rotec (A&R) for the production of their own offshore rotor blades for wind turbines. The joint venture was approved by the REpower Supervisory Board in May and produced the rotor blades developed by REpower . Senvion has a 51 percent stake in PowerBlades GmbH and SGL Rotec 49 percent. In Bremerhaven, a separate factory was built for the production of the rotor blades in the immediate vicinity of a production hall for the Senvion 5M and Senvion 6M offshore systems . The blade production started in 2008.

In March 2008, a Repower 5M was erected at the north port in Bremerhaven on a new sea-going foundation ( jacket foundation ) by WeserWind GmbH (a subsidiary of the Georgsmarienhütte group of companies ).

On July 12, 2007, REpower , the Osterrönfeld community and the Rendsburg-Eckernförde District Economic Development Agency (WFG) signed a contract that confirmed the company's intention to settle in the community on the Kiel Canal . The municipality and the WFG undertook to provide REpower with the space required for the construction of production facilities and an administration building within one year and to build a heavy-duty terminal in the port opposite the current Rendsburg district port, which will be used to transport the offshore wind turbine components suitable is. REpower promised to apply for the construction of an administration and a production building and to build it if the legal planning requirements are met. The terminal was called Rendsburg Port and opened in 2012.

In 2007 the TechCenter in Osterrönfeld was inaugurated.

At the end of August 2017, the German production sites in Husum and Trampe were closed. At the end of January 2018, the last PowerBlades rotor blade was completed in Bremerhaven. The rotor blade production at this location was given up and the hall should be used for other purposes by Senvion.

On April 9, 2019, Senvion Deutschland GmbH filed for insolvency proceedings in self-administration. A week later, a credit line of 100 million euros was secured; this made it possible to continue business for the time being with the aim of finding buyers for the entire company or for parts of the company. In September 2019, the number of those still employed was given as 1,400 to 1,500. Turbine production in Bremerhaven with 200 employees is to be given up by the end of the year.

Senvion International

The group was worldwide with various subsidiaries , joint ventures and licensed partner companies in Australia, Belgium, Canada, China, Chile, Great Britain, France, India, Italy, Ireland, Japan, Netherlands, Portugal, Poland, Romania, Sweden, Turkey, and the USA represented.

Another production facility for rotor blades is RiaBlades in Vagos , Portugal , where the RE45, RE51, RE55, RE61 blades and the RE68.5 prototype blades are manufactured. In addition, the Senvion subsidiary Ventipower in Oliviera de Frades , Portugal, produces nacelles and hubs for systems in the 2 megawatt class. In July 2015, Senvion opened an additional R&D center in India.

organization

Board

  • Yves Rannou (CEO)
  • Hans-Jürgen Wiecha (CFO)
  • David Hardy (CSO / Executive Director)

Supervisory board

The Supervisory Board consists of Eugene Davis (Chairman), Steven D. Scheiwe and Timothy Bernlohr (as of mid-2019).

Wind turbines on land (onshore)

Source: Senvion

MM series

MM100 in Helmern on the A44
Plant type MM82 MM92 MM100
IEC wind class IA / S IIA / S IIB / S
Nominal power (kW) 2,050 2,050 2,000
Rotor diameter (m) 82 92 100
swept area (m²) 5,281 6,720 7,854
revolutions per minute 8.5-17.1 7.5-15 7-13.9
Hub height (m) 88.5-80 63.75-100 74.5-100
Max. Sound power level dB (A) 104 103.2 103.8

2.XM series

Following the acquisition of components from the Indian manufacturer Kenersys in 2016, the 2.XM series expands the range of two-megawatt systems for the Indian market.

Plant type 2.3M130
IEC wind class S.
Nominal power (kW) 2,300
Rotor diameter (m) 130
swept area (m²) 13,237
Hub height (m) flexible
Max. Sound power level dB (A) 107

3.XM series

The 3.XM series comprises wind turbines that are designed for the onshore market. The modular system with different generator outputs from 3.0 to 3.7 megawatts, rotor sizes from 104 to 144 meters and different hub heights up to 160 meters enables various locations to be developed.

Two prototypes of the 3.4M104 were erected in late 2008 and early 2009 in a wind farm near Husum . When developing the 3.XM series, Senvion drew on experience from the design of the MM series and the 5M126 offshore system and combined the advantages of the respective system types. The rotor blades are made of fiberglass-reinforced plastic.

Plant type 3.4M104 3.4M122 NES 3.6M114 NES 3.6M118 NES 3.6M140 EBC 3.7M144 EBC
IEC wind class IB / S IIA IB / S IB / S IIB / S IIB / S
Nominal power (kW) 3,400 3,400 3,600 3,600 3,600 3,700
Rotor diameter (m) 104 122 114 118 140 144
swept area (m²) 8,495 11,690 10.207 10,936 15,394 16,286
revolutions per minute 7.1-13.8 6.1-11.3 6.5-12.1 5.8-12.1 6.3-9.6 4.8-9.9
Hub height (m) 73-100 86-139 90-119 flexible 107-160 flexible
Max. Sound power level dB (A) 105.6 104.5 104.2 105 104 105

3.4M104

3.4M104

Technical data of the Senvion 3.4M104:

  • Rotor blade length 50.8 m
  • Switch-on speed 3.5 m / s
  • Nominal wind speed 13.5 m / s
  • Cut-out speed 25 m / s
  • Double fed asynchronous generator
  • frequency converter

3.4M122

3.0M122 at 139 m in Helmern on the A44
3.2M122 in the Ahrensfeld wind farm near Bramsche

The first 3.4M122 systems in Germany were put into operation in February 2017 in Heidenau (Nordheide) .

Technical data of the Senvion 3.4M122:

  • Rotor blade length 59.8 m
  • Switch-on speed 3 m / s
  • Nominal wind speed 12.5 m / s
  • Cut-out speed 22 m / s
  • Asynchronous generator, squirrel cage
  • liquid-cooled full converter

3.6M114

3.2M114 in the Berching wind farm

The first 3.6M114 systems in Germany were put into operation in Winnert in September 2018 .

Technical data of the Senvion 3.6M114:

  • Rotor blade length 55.8 m
  • Switch-on speed 3 m / s
  • Nominal wind speed 13 m / s
  • Cut-out speed 22 m / s
  • Asynchronous generator, squirrel cage
  • Full converter with DC voltage intermediate circuit

3.6M118

Technical data of the Senvion 3.6M118:

  • Rotor blade length 57.8 m
  • Switch-on speed 3 m / s
  • Nominal wind speed 12.5 m / s
  • Cut-out speed 26 m / s
  • Asynchronous generator, squirrel cage
  • Full converter with DC voltage intermediate circuit

3.6M140

The 3.4M140 presented Senvion in September 2015 to the HUSUM WindEnergy ago. The turbine, which will initially be available with two hub heights of 110 and 130 m, has an output of 3.4 MW and a rotor diameter of 140 m and is designed as a low wind turbine for locations with low wind speeds (IEC IIIA). It is also the starting point for a new product platform. An asynchronous generator without slip rings, which is coupled to a full converter, is used as the generator . The one-piece rotor blades with a length of 68.5 m are made entirely of glass-fiber reinforced plastic and are pre-bent to counteract bending under load; the use of carbon fiber is dispensed with. In order to keep the noise level low, the blade profile is optimized for low-noise air flow and the blade tip speed is limited to 70 m / s. In addition, the system is equipped with a new pitch control designed to reduce maximum loads. In contrast to earlier models, the system is designed for an extended service life of 25 instead of 20 years. A prototype of the 3.4M140 was set up in Heckelberg-Brunow in June 2017 . A prototype of the 3.6M140 with increased performance was installed in the Südermarsch test field in August 2017 .

Technical data of the Senvion 3.6M140:

  • Rotor blade length 68.5 m
  • Switch-on speed 3 m / s
  • Nominal wind speed 11 m / s
  • Cut-out speed 22 m / s
  • Asynchronous generator, squirrel cage
  • Full converter with DC voltage intermediate circuit

3.7M144

Technical data of the Senvion 3.7M144:

  • Rotor blade length 70.5 m
  • Switch-on speed 3 m / s
  • Nominal wind speed 12 m / s
  • Cut-out speed 26 m / s
  • Asynchronous generator, squirrel cage
  • Full converter with DC voltage intermediate circuit

4.XM series

The 4-XM series includes wind turbines for locations with low and medium wind speeds.

Plant type 4.2M118 NES 4.2M140 EBC 4.2M148 EBC
IEC wind class IB / S IIB / S IIIB / S
Nominal power (kW) 4,200 4,200 4,200
Rotor diameter (m) 118 140 148
swept area (m²) 10,936 15,394 17.203
revolutions per minute 5.5-12.5 4.6-10.5 4.6-10.5
Hub height (m) flexible flexible flexible
Max. Sound power level dB (A) 105 105 105

4.2M118

Technical data of the Senvion 4.2M118:

  • Rotor blade length 57.8 m
  • Switch-on speed 3 m / s
  • Cut-out speed 22 m / s
  • Asynchronous generator, squirrel cage
  • Full converter with DC voltage intermediate circuit

4.2M140

A prototype of the 4.2M140 EBC with a hub height of 130 m was commissioned by Prokon in December 2018 in Blumberg .

Technical data of the Senvion 4.2M140:

  • Rotor blade length 68.5 m
  • Switch-on speed 3 m / s
  • Cut-out speed 22 m / s
  • Asynchronous generator, squirrel cage
  • Full converter with DC voltage intermediate circuit

4.2M148

Technical data of the Senvion 4.2M148:

  • Rotor blade length 72.5 m
  • Switch-on speed 3 m / s
  • Cut-out speed 22 m / s
  • Asynchronous generator, squirrel cage
  • Full converter with DC voltage intermediate circuit

Wind turbines at sea (offshore)

The offshore series was launched in 2004 with the introduction of the 5M126 and later supplemented by two other types of turbines, each with a nominal output of 6.15 MW and rotor diameters of 126 and 152 m respectively. As of June 2016, a good 200 systems of the three series had been installed.

Plant type 5M126 6.2M126 6.3M152
Nominal power (kW) 5,075 6,150 6,150-6,330
Rotor diameter (m) 126 126 152
swept area (m²) 12,469 12,469 18,146
revolutions per minute 6.9-12.1 7.7-12.1 6.4-10.1
Max. Sound power level dB (A) 109 109 109
Availability status no longer in production no longer in production no longer in production

5M126

Machine house of the 5M126

The prototype of the 5M126 was installed in Brunsbüttel in 2004 and fed electricity into the public grid for the first time in mid-November 2004 . The turbine has a nominal output of 5  MW and a rotor blade length of 63 m with a rotor diameter of 126 m. At the time of commissioning, the 5M126 was the largest and most powerful wind turbine in the world. The blades were made by LM Glasfiber , are made of glass fiber reinforced plastic and contain carbon fiber reinforced elements. The plant is designed for offshore - wind farms designed and is about 17 million  kWh produce per year. The tower height is 120 m, the total height is 183 meters.

Technical data of the Senvion 5M126 (as of December 2009):

  • Rotor blade length 61.5 m
  • Switch-on speed 3.5 m / s
  • Nominal wind speed 13.0 m / s
  • Cut-out wind speed 25 m / s (onshore) or 30 m / s (offshore)
  • Gondola dimensions 6 m / 6 m / 18 m (H / W / L)
  • Tower mass 750 t
  • Nacelle mass 290 t (without rotor)
  • Rotor mass 120 t (was assembled in one piece)
  • Double fed asynchronous generator
  • Combined planetary-spur gear with a ratio of 97: 1 and 63 t weight

6.2M126

The Senvion 6.2M126 (original name: REpower 6M) is based on the technology of the 5M series, has a rated output of six megawatts and a rotor diameter like the 5M126 of 126 m. The first three wind turbines of this offshore type with a hub height of 100 m were installed in March 2009 in the Westre community wind farm on the German-Danish border. The rotor blades with a length of 61.5 m each came directly from Denmark by heavy load. The future series production will take place in a new assembly hall of the wind power company in Bremerhaven , which is designed for the production and direct shipping of more than 80 machine houses and hubs per year.

Technical data of the Senvion 6M126:

  • Nominal frequency: 50 Hz
  • Switch-on speed 3.5 m / s
  • Nominal wind speed 14.5 m / s (onshore) or 14 m / s (offshore)
  • Cut-out wind speed 25 m / s (onshore) or 30 m / s (offshore)
  • Rotor blade length: 61.5 m

6.3M152

6.2M152 prototype installation in Neuenwalde

The Senvion 6.2M152 (then still REpower 6.2M152) was presented to the public in November 2013. The system is a further development of the existing 6.2M126, which is equipped with a larger rotor diameter of 152 meters with an unchanged rated output of 6.15 MW. In addition, the drive train has been revised. Compared to the previous model, the energy yield should be increased by 20% (at an annual average speed of 9.5 m / s). The prototype was erected in December 2014 at a rural location in Langen-Neuenwalde , 20 kilometers north of Bremerhaven. The design service life has been increased by 5 years compared to the previous model and is now 25 years. The wind turbine was sold in series as the 6.3M152 with a nominal output of 6,330 kW.

Earlier plant types

The former REpower plant in Husum

The reference report also contains other wind turbines from the Group's past:

aeroman 12 and 14.8: For these systems from MAN, Jacobs Energie took over in 1993.
Adler 25: This system from Köster Maschinenfabrik (Heide) has also been included in maintenance.
HSW 250: Husum shipyard
J37 and J41 / 500: Jacobs Energie
J43 / 600: Jacobs Energy
48/750: BWU750
BWU 57/1000 and HSW1000
Plant type Nominal power (kW) Rotor diameter (m) swept area (m²) Hub height (m)
48/600 600 48.4 1,840 50/65/75
MD 70 1,500 70 3,850 65/85/90
MD 77 1,500 77 4,657 61.5 / 85/100
MM 70 2,000 70 3,850 55/65/80
3.0M122 3,000 122 11,690 89-139
3.2M114 NES 3,200 114 10.207 93/123/143
3.4M140 3,400 140 15,394 110/130

The early years of REpower were closely linked to the 1500 kW wind turbine of the MD series. Developed by "pro + pro Energiesysteme" This system was already beginning Company to other manufacturers, for example, Gamesa , Fuhrländer , South Wind , Goldwind as license awarded.

In 2004, REpower issued a license to Dongfang Electric .

Important (offshore) wind farms

Beatrice Demonstrator Project

Two 5M126 turbines have been installed in the Beatrice offshore wind farm near the Beatrice oil field, 25 kilometers off the Scottish east coast in the Moray Firth, at a water depth of over 40 meters. The hub height there is 89 m, the so-called "jacket foundation" (see picture above) is used as the foundation structure. The demonstration project is part of the EU-funded "DOWNVInD" project, with a total volume of 30 million euros, Europe's largest research and development program in the field of renewable energies. Talisman Energy (UK) and Scottish & Southern Energy (SSE) are the coordinators of the project, which involves a large number of research and development organizations from across Europe. Senvion is the exclusive system supplier.

Turbines number 3 and 4 were set up at the end of 2006 on the offshore wind turbine test site in Cuxhaven .

Thornton Bank

The construction of six 5M126 wind turbines was completed in September 2008 in the Thorntonbank offshore wind farm , 28 kilometers from the Belgian coast. The systems were installed in 12–27 m deep water in the North Sea . In expansion phases 2 and 3, a total of 48 6.2M126 turbines were added to the wind farm. In total, the installed capacity in the final stage will be 325 MW.

alpha ventus

The first wind farm in German waters, called the alpha ventus offshore wind farm , is located around 45 kilometers north of the island of Borkum at a water depth of 30 m. Of the total of twelve wind turbines, REpower supplied six 5M126. The location offers good conditions for an offshore wind farm, as the average wind speed here is 36 km / h ( wind force  5). Experts reckon with a total of 3,800  full load hours per year.

Ormonde

The Ormonde offshore wind farm is a Vattenfall wind farm in the Irish Sea . The park was installed 10 km off the coast of Barrow-in-Furness . The first work began in 2009. The wind turbines have been feeding electricity into the grid since August 2011, and the park was finally completed in February 2012. The park consists of a total of 30 5M126. The total output of the park is therefore 150 MW with an assumed electricity production of 500 gigawatt hours per year. The total size of the park is 8.7 km².

North Sea East

The Nordsee Ost offshore wind farm is operated by Innogy . The project location is 35 km north of Helgoland and 40 km west of Amrum. By December 2014, 48 Senvion 6.2M126 had been installed. The water depth is between 22 and 26 m. The building permit was granted in June 2004 and construction began in 2012. The first wind power plant was fed into the German high-voltage and extra-high-voltage network in December 2014, and it was fully commissioned in 2015.

North Sea One

The offshore wind farm Nordsee One is located in the German exclusive economic zone of the North Sea and was commissioned in 2017. An annual standard energy capacity of approx. 1200 GWh or a good 3600 full load hours was expected. 54 wind turbines of the 6.2M126 type are used, each with a rotor diameter of 126 m and a nominal output of 6.15 MW. The tower height of the systems is around 70 meters. The total output of the wind farm is 332.1 MW. They were erected on monopile foundations. The total height of the systems is approx. 152 m. The systems each have a weight of over 600 tons, 335 tons of which are for the gondola alone. An operating life of at least 25 years is planned.

Trianel Borkum West II

The Trianel wind park Borkum II is an offshore wind park in the German exclusive economic zone in the southern North Sea. It will be built in two phases with 200 MW each. The phase 1 systems have been in operation since 2015; the offshore construction work for phase 2 began in 2018 and will be completed with the planned commissioning in 2019. 32 wind turbines of the type 6.3M152 are used, each with a rotor diameter of 152 m and a nominal output of 6.35 MW. The tower height of the systems is approx. 80 m. The total output of the wind farm is 203.2 MW. They were erected on monopile foundations by Steelwind Nordenham GmbH in water depths of 25 to 35 m.

Nordergrund

The Nordergrund offshore wind farm near the mouth of the Weser consists of 18 6.2M126 wind turbines. The project was built by wpd within the 12 nautical mile zone, about 40 kilometers northwest of Bremerhaven. The companies signed the contract for the delivery, installation and commissioning of the wind turbines on February 20 in Bremen. After completion in autumn 2017, the Nordergrund offshore wind farm will have an installed capacity of 110.7 MW. This means that more than 70,000 households can be supplied with electricity a year.

See also

Web links

Commons : Senvion  - collection of images

Individual evidence

  1. Senvion Management. Retrieved July 1, 2019 .
  2. Senvion GmbH: About us. Retrieved September 25, 2017 .
  3. Senvion: Annual Report 2017 (PDF) Accessed July 11, 2018 .
  4. ARD: Senvion files for bankruptcy. In: boerse.ard.de. April 9, 2019, accessed April 9, 2019 .
  5. Senvion: Sale as a whole failed. In: Norddeutscher Rundfunk . Retrieved August 28, 2019 .
  6. Senvion: Annual Report 2001 , accessed on September 17, 2015
  7. ^ Die Welt : Jacobs Windenergie inaugurates company headquarters in Husum , October 7, 2000
  8. ^ Website Denker & Wulf: Historie - 1995 , accessed on December 4, 2018
  9. REpower: Annual Report 2002 , accessed on September 17, 2015
  10. ^ Website Denker & Wulf: Historie - 2004 , accessed on December 4, 2018
  11. ^ Senvion: Offer from Areva to take over the shares of REpower Systems AG. January 22, 2010, accessed December 2, 2017 .
  12. http://www.repower.areva.com/telecharger.php?fichier_doc=Angebot_fur_REpower_Deutsch.pdf&id_doc=15&langue=all ( Memento from September 28, 2007 in the Internet Archive )
  13. Press release: Suzlon announces friendly takeover offer for REpower with the support of Martifer ( Memento of September 28, 2007 in the Internet Archive )
  14. AREVA INCREASES OFFER PRICE TO 140 EUROS PER REPOWER SHARE. March 15, 2007, accessed December 2, 2017 .
  15. Suzlon increases its offer for the shares of REpower Systems AG from 126 euros to 150 euros per share ( Memento of September 28, 2007 in the Internet Archive )
  16. Senvion SA: AREVA and SUZLON cooperate. May 25, 2007, accessed December 2, 2017 .
  17. Senvion SA: Green light for series production of the 5M offshore system. December 5, 2006, accessed December 2, 2017 .
  18. Senvion: Senvion installs the 7,777th wind turbine. Retrieved November 30, 2017 .
  19. Selling Senvion parts is a done deal. In: Norddeutscher Rundfunk . Retrieved October 21, 2019 .
  20. Shareholder structure  ( page no longer available , search in web archives ). @1@ 2Template: Dead Link / www.repower.de REpower Systems, April 4, 2011
  21. PRESS INFORMATION: REpower Systems SE's squeeze-out decision entered in the commercial register , October 27, 2011
  22. IWR: Wind power: REpower becomes Senvion , from October 30, 2013.
  23. Ralf Köpke: REpower Systems becomes Senvion . In E&M daily , October 31, 2013.
  24. Angelika Slavik: Second air. The wind turbine manufacturer Senvion still fought its way onto the stock exchange . In: Süddeutsche Zeitung , March 17, 2016, p. 29.
  25. The next chance for Senvion . In: Manager-Magazin.de , January 22, 2015, accessed on January 25, 2015.
  26. Centerbridge completes takeover of Hamburg-based wind turbine manufacturer Senvion. In: www.senvion.com. Retrieved December 4, 2018 .
  27. ^ Indian capital again - wind energy - renewable energies. In: Renewable Energies. The magazine . Retrieved March 23, 2016 .
  28. ↑ Issue price fixed at EUR 15.75 per share. In: www.senvion.com. Retrieved December 4, 2018 .
  29. a b Social plan for wind turbine manufacturer Senvion is in place. In: Süddeutsche Zeitung . August 1, 2017, accessed on August 7, 2020 (The Senvion Husum and Trampe locations were closed on September 1, 2017).
  30. REpower celebrates topping-out ceremony for new ... Accessed on October 12, 2017 .
  31. Christoph Barth: Bremerhaven: Last Powerblades rotor blade completed. In: Nordsee-Zeitung . January 26, 2018, accessed January 27, 2018 .
  32. Katrin Rosendahl: Senvion signs loan agreement for 100 million euros with lenders and key bondholders. In: Senvion Newsroom. Senvion, April 17, 2019, accessed May 17, 2019 .
  33. NDR: Senvion: 900 employees could lose their jobs. September 16, 2019, accessed September 20, 2019 .
  34. Locations | senvion.com. Retrieved October 12, 2017 .
  35. Senvion opens R&D Center in India to further ... Retrieved on October 12, 2017 (English).
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